The AirTAC GFR400C10MLF2WK AirTAC Filter Regulator 3/8 in PT is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has See datasheet ports, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The GFR400C10MLF2WK is an AirTAC GFR400 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration is size 400 with a 3/8 in PT port, and it carries the fine 5 um filtration element (code W) in place of the 40 um standard. Water collected in the polycarbonate bowl is expelled by hand through the manual drain. The regulator is the low-pressure type - its exact adjustment range is not published, and we confirm it on request - and it is read on the embedded square gauge scaled in psi. A reverse/check valve is fitted and a mounting bracket is included.
This is a genuine AirTAC part. The GFR series spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and options across the series include automatic, manual or differential-pressure drains, 40 um or 5 um filtration, gauge scales in MPa, psi or bar, and G (BSPP) or NPT threads to order. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us to confirm sizing figures from the datasheet for your application.
| Model | GFR400C10MLF2WK AirTAC Filter Regulator 3/8 in PT |
|---|---|
| Series | GFR400 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard type |
| Adjusting mechanism | Balanced type |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Drain type | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard scale |
| Reflux valve | Not fitted |
Specifications follow the official AirTAC G-series air-preparation data. The regulating band is set by the drain type: automatic and differential-pressure drains regulate 0.15 - 0.9 MPa, a manual drain regulates 0.05 - 0.9 MPa. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). Air must not freeze in the unit. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| GFR400 | G-series filter regulator, 400 body — sets the port range. |
|---|---|
| C1 | Port size See datasheet. This body offers 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
| (blank) | No reverse-flow valve (the default). |
Field order is size, port, drain, type, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR400 · See datasheet · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-C1 (two-unit set) |
Filtered, regulated air to pneumatic clamps and fixtures on a machining cell, where the 5 um element helps keep fine particles out of clamp cylinders and control valves.
Supplying steady low-pressure air to the cylinders and grippers of a packaging or carton-sealing conveyor, with the square psi gauge giving operators a local pressure readout at the machine.
Air preparation for spray guns and air-assisted applicators in a finishing shop, where fine 5 um filtration and routine manual draining of water support a clean finish.
The real choices when specifying: step through sizes 200/300/400/600 and ports 1/8 in to 1 in to match the air demand of the machine - this unit sits at size 400, 3/8 in PT. Drain: this code takes the manual drain, where an operator opens the drain to expel collected water; the series also offers automatic and differential-pressure drains if you prefer not to drain by hand. Filtration: 5 um here versus the 40 um standard element - choose 5 um where downstream equipment needs finer protection. Gauge scale is selectable (MPa, psi or bar); this unit carries the square psi gauge. Thread: PT is the standard on this code, with G (BSPP) and NPT available as order options, and a mounting bracket is included. Because flow is published as curves rather than a single rated figure, send us your application details and we will confirm sizing from the datasheet before you order.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as curves, not as a single rated number, so we do not quote a figure here. Send us your port size, upstream pressure and the air demand of your equipment, and we will confirm the sizing from the datasheet on request.
This code uses a manual drain: an operator opens the drain to expel water collected in the polycarbonate bowl. If you would rather not drain by hand, the same GFR400 size is available with an automatic or a differential-pressure drain - just tell us which you prefer when ordering.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT), gauge scale and destination. We confirm price, availability and lead time — usually within 7-8 hours.